The conventional operation sequence of the fire protection system of the heavy-duty Isuzu water tank fire truck is the parking operation, the water discharge operation of the vehicle-mounted cannon or the water discharge operation of the water outlet, the water replenishment operation and the vehicle closing operation. A. Parking operation 1. After the heavy-duty water tank fire truck arrives at the work site, the driver should choose a safe parking position for the vehicle to stop and brake. 2. During fire fighting and rescue, you should choose a solid site in the upwind or crosswind direction of the fire site or the toxic and harmful gas leakage site to stop the vehicle to ensure that personnel and vehicle braking, pneumatic valve switching and other operations can be performed normally. 3. After the vehicle has stopped, keep the engine running slowly, tighten the hand brake, and install the wheel blocks. It should also be checked to confirm that the source pressure remains above 0.6MPa to ensure that vehicle braking, pneumatic valve switching and other operations can proceed normally. B. Vehicle-mounted cannon water discharge operation 1. Fire pump starting operation 1) After parking the heavy-duty water tank fire truck, you should first confirm that the liquid level in the water tank is above 30%, open the water tank outlet valve, and then start the fire pump. 2) Turn on the "tank water outlet" switch on the operation panel in the cab or the "tank water outlet" switch on the control panel in the pump room, and the water tank water outlet valve will open automatically. If the water tank outlet valve is not opened, you should choose to perform electric emergency operation first, then start the emergency operation, and then open the water tank outlet valve in priority order of manual emergency operation. 3) After the water tank outlet valve is opened, confirm that the gearbox is in neutral and the engine is running idle. After depressing the clutch for 3 seconds, move the fire pump power take-off switch to the on position, release the clutch pedal, and the fire pump starts to run at low speed. 2. Vehicle-mounted cannon water discharge operation 1) Before the vehicle-mounted cannon discharges water, the vehicle-mounted cannon jet setting should be carried out first, and then the vehicle-mounted cannon should eject water. Pay attention to the changes in water level when the water is discharged. 2) Plug in the wired remote control box of the vehicle-mounted gun and adjust the orientation and jet mode of the vehicle-mounted gun according to its panel operation prompts. When the gun rotates at a depression angle, attention should be paid to its rotation route to avoid damage. 3) Turn on the "gun spray" switch, slowly operate the hand throttle to adjust the fire pump outlet pressure, and the vehicle-mounted gun can spray water. When the vehicle-mounted gun comes out of the water, adjust the angle and jet mode of the vehicle-mounted gun in a timely man...
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